Cation Self-Diffusion in Polycrystalline Y2O3 and Er2O3 |
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| Authors: | M. F. BERARD D. R. WILDER |
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| Affiliation: | Institute for Atomic Research and Department of Ceramic Engineering, Iowa State University, Ames, Iowa 50010 |
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| Abstract: | A tracer sectioning technique was used to measure cation self-diffusion coefficients in fully dense polycrystalline YaO3 and Er2Os under oxidizing conditions. The results are described by the relations for Y2O3 (1400° to 1670°C), and for Er2O3 (1400° to 1700°C). The greater activation energy for erbium diffusion in erbia may be partly attributable to a mass effect. |
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